9-3 Coupe (9400) L4-2.0L Turbo (B204) (1999)
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Ventilation Fan: Testing and Inspection
Ventilation Fan and Electrically Heated Rear Window Cannot Start Until 20 S After Ignition on
Ventilation Fan And Electrically Heated Rear Window Cannot Start Until 20 s After Ignition On
Fault symptoms
Electric rear window and ventilation fan cannot start until 20 seconds after the ignition has been turned to the ON position (+54 voltage).
Diagnostic help
Ignition +54 can be read in DICE using the diagnostic tool.
If +54 is absent when +15 is present, the bus message Ignition +54 ON is generated after 20 s.
The ACC uses the bus message Ignition +54 to disengage the ventilation fan while the engine is being started.
